US1198970A - Electric-light regulator. - Google Patents

Description

L. SYKES & J. H. NAVE.

ELECTRIC LIGHT REGULATOR.

APPLICATION FILED 05c. 18, 1915.

1 1 98,970, Patented Sept. 19, 1916.

V 3 SHEETS-SHEET I.

L. SYKES &J. H. NAVE.

ELECTRIC LIGHT REGULATOR.

APPLICATION FILED DEC. H3, 1915.

3 SHEETS-SHEET 2.

Patented Sept. 19, 1916.

W R Q Q w jlp La 0 was v kws i SYKES & J. H. NAVE.

ELECTRIC LIGHT REGULATOR.

APPLICATION FILED DEC. 18, 1915.

1 1 98,970. Patented Sept. 19,1916.

3 SHEETS-SHEET 3.

1 QQQ'QQQQ Attnrurus UNITED STATES PATENT OFFICE.

LEONARD SYKES AND iTAMES H. NA'VE, OF FORT WAYNE, INDIANA, ASSIGNORS TO ANY LITE COMPANY, OF NORTH YAKIMA, WASHINGTON, A CORPORATION OF WASHINGTON.

ELECTRICrLIGHT REGULATOR.

Specification of Letters ratii'e Patented Sept. 19, 1916.

Application filed December 18, 1915." SeriaIN'o. 67,655.

To all whom it may concern Be it known that we, LEONARD States, a

This invention relates to electric light regulators, and has for an object to provide improved means for increasing or decreasing resistance as the required or desired light may make this necessary.

A further object of the invention is to provide an improved light attachment having a resistance coil located therein con-.

nected at one end to the line, and with an improved swinging contact adapted to engage the coil with the swinging contact also in circuit.

A further object of the invention is to provide improved means for manually controlling the swinging contact.

Another object of the invention is to provide improved means for cutting a re sistance into a circuit adapted for use in an electric light socket, an auxiliary socket or wall receptacle.

With these and other objects in viewthe invention consists in certain novel features of construction, combination-"and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings :.Figure 1 is a longitudinal diametrical sectional view through an auxiliary socket embodying the present invention. Fig. 2 is atra-nsverse sectional view through the casing on the line 22 of Fig. 7, showing the top of one of the blocks with the screw plug of the socket removed. Fig. 3 is a transverse sectional view taken on line 33 of Fig. 1, with the resistance coil removed. Fig. 4 is a view in side elevation of the two porcelains clamping the resistance coil and showing the swinging contact in perspective. F i 5 is a perspective view of the swinging contact removed. Fig. 6 is a diagrammatic sectional view showing the engagement of the -swinging contact with the resistance coil. Fig. 7 is a view inside plug and the swinging porcelain 21 thereon.

elevation of the auxiliary type of socket. Fig. 8 is a diametrical longitudinal sectional view of a socket embodying the present lnvention adapted to be attached directly to a conductor. Fig. 9 is a sectional view through the casing taken on line 9-9 of F 1g. 8, showing the upper porcelain in plan as well as the swinging contact. Fig. 10 is a detail sectional view of forming electrical contact between the arm in a type of socket shown at Fig. 1. Fig. 11 is a View in side elevation of the type of socket shown at Fig. 8. Fig. 12 is a view in section of a wall receptacle embodying-the present invention. Fig. 13 is a sectional view of a wall receptacle embodying the present invention taken at right angles to Fig. 12. Fig. 14 is a perspective view of the base porcelain 01' the type employed at Figs. 12 and 13. Fig. 15 is a view in front elevation of a wall receptacle embodying the present invention showing the extended ends ofthe coil for manual actuation.

Like characters of reference designate parts throughout the several comprises a base porcelain shown at 20 in the type shown at Fig. 1, with a superposed The base porcelain 20 is preferably provided with a central hub 22 with a squared portion 23 engaging in complementary sockets in the superposed porcelain 21.

The porcelain 20 is provided with a beveled or inclined annular portion 24 forming an annular space between the porcelains 20 and 21 diminishing in depth toward the center within which space is located a coil 25 of resistance wire. The resistance wire is of course insulated in the usual wellknown manner with the insulation scraped from the upper surface of such wire as indicated at 26 in Fig. 6 immediately below the arcuate slot 27 in the porcelain 21fsuch slot being shown more particularly at Fig. 2. livoted at- 28 to the porcelain 21 is a swinging contact 2 having a spring finger 30 hea ring directly upon skinned surfaces of the resistance coil as shown at Fig. (i. The

contact finger 30 is provided with a stamped showing the means A. further sleeve 36 embraces the casing 32 and the whole structure. is secured together bymeans of a bolt 37 downwardly through-the plug porcelain 38,

. through the porcelains 21 and 20, and is provided at its lower end'with the contact 39.

The socket 33 is-secured' to the. porcelain by means of a bolt'40,

and the whole device is ventilated by means" of theopenings 41 2 7121, and the openings 43 and 44 in the casing. The swinging contact member 29 is ma- 5 ings 44.

in the porcelain 20' and 42 in the porcelain nipulated by meausof cords 45 and 46 which pass throughopenings '47 and 48 respectively, and are attached to the swinging contact member 29 by being passed through the opening 49 therein and secured thereto in any approved manner as by the knot=51, and said cords are respectively upon the exterior of the casing provided with'pendant members 52 and 53. The metal sleeve 54 about the plug porcelain 38 is electrically connected with the swinging contact member 29 by a finger 55 formed mtegraltherewith and engaging against the head of the bolt at 28, as shown more particularly at Fig. 1. Means as the rib 56 provides a tongue and groove connection between the porcelain 21 and the porcelain-38 whereby the relation of the two porcelains is maintained to maintain the finger 55 in engagement with the pivot 28, while the porcelains 21 and 20 are maintained in non-rotatable position by means of the squared member 23.

As shown at Figs. 8, 9 and 11, the socket is intended to attach to the ordinary conductor 57, a bushing 58 being employed to engage the casing 59 in substantially the usual and ordinary manner. The porcelains 20 and 21 are substantially the same as disclosed in Figs. 1 to 7 inclusive, but connection is made by substituting the porcelain block 60 for the block a contactbracket 61 is secured connected with the bolt 37, and a second contact bracket 62 is provided with a finger 63 resting upon the pivot 28.

The inclosing structure difliers from the inclosing structure of the device shown at Figs. 1 to 7 inclusive only in that the casing 64 is substituted for the sleeve 36 to engage the bushing 53. The manual cords 45 and 46 are brought out through openings 47 and 48 in the casing 64 and the openings 66 are preferably placed higher up than the open- A lip 67 is also preferably struck receptaclethe base porcelain shown which extends 56. To the block' 60 in at'68 to bear on the porcelain .21 to properly position. the parts.

To arrange 'the'parts for use in a wall at 68 is provided with-ears 69 to secure the same to the receptacle 701as shown at Figs}. 12 and 13. The porcelains21 and 60 are connected the same as in the disclosure of Fig. 8, and

. the manual cords 45 and 46 run outwardly through bushings 71 and 72 respectively formed in the receptacle cover 73, and the coil 25 is connected with the bolt 37 as shown at Fig. 12 indicated in dotted lines at 74. Whichever the construction, the coil 25 is in all instances surrounded by a band or ring of insulating material 75 so that at the extreme outward limit of movement the contact finger 3O bears upon such insulating material to-wholly break the circuit. The center of the annulus composed of the resistance coil 25 is also preferably composed of a ring 76 of little or no resistance upon which the contactfinger 3O rests when the light is to be on at full voltage.

It is obvious therefore that as the contact finger is moved manually in its arc across the stripped surfaces of the resistance coil it first. leaves the ring 76, offering but little resistance connected directly with the light, and moves to cut in increasing coils of resistance until adjacent the periphery the resistance has become so great as to practically extinguish the light when a further move onto the insulating material 7 5 serves to break the circuit entirely. It is obvious therefore that in turning on'a light by this contrivance the finger if first moved from the insulating material through the resistance decreasingly to full voltage whereb the current is turned on at the light gra ually and avoiding thereby the shock of sudden impressing of the high voltage upon the filament of the lamp. This tends to save the filament and increase the life of the lamp.

WVe claim:

1. The combination with an electrical conductor, of a pair of insulating blocks spaced apart by an interval increasing in width from the center, a contact ring located in the space nearest the center, a resistance coil filling the space and having one end attached to the ring, an insulating material located at the outer periphery of the space, a swinging contact member located upon one of the blocks and adapted for engagement with the ring and the resistance coil, andtgnanual means for swinging the contact n1erri l .er upon a pivot.

2. flihe combination with an electric circuit, of a pair of insulating blocks spaced apart, a conductor ring located in the space andiconnected with one side of the circuit, a. resistance coil located in the space and having one end connected with the ring, an

insulating material inclosingthe resistance coil and located at the periphery of the block, and a swinging contact member electrically connected with the other side of the circuit and adapted to progressively engage the resistance coil from the conductor ring upon one side to the insulating material upon the opposite side.

3. The combination with an open electric circuit, of a housing embracing the terminals of the circuit, a pair of insulating blocks spaced apart located within the housing, a conductor ring located within the space adjacent the center'and connected with one of the terminals, a resistance coil located within the .space and having one end connected with the ring, a swinging contact member connected with the other terminal and having a finger in engagement with the resistance coil, an insulating material located upon the external periphery of the coil and in position to engage the finger, and flexible members connected with the swinging contact and extending outwardly through the casing.

In testimony whereof we affix our signatures in presence of two witnesses.

LEONARD SYKES, JAMES H. NAVE. Witnesses:

RHYs DAVIES, F. S. GRAMER.

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